package com.education.web.dto;

import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.util.Set;

/**
 * 在线用户管理器
 * @author zengjintao
 * @version 1.0
 * @create_at 2019/4/7 14:52
 */
@Component
public final class OnlineUserManager {

}
